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Official data from INPI

DISCO DE FLUXO DE GÁS APLICADO A REGISTROS

Em AnáliseUtility Model

Application data

Number

MU6602465

Type

Utility Model

Filing

12/15/1986

Publication

07/05/1988

Progress at the INPI

  1. Filing12/15/86
  2. Publication07/05/88
  3. Examination10/04/88
  4. Allowance02/05/91
  5. Grant10/29/91
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. A. (pessoa física)

SP, BR

Inventors

J. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

07/05/1988

RPI 924

Pedido de patente depositado

#2.1

05/05/1987

RPI 863

Carta-patente expirada

#21.1

Patente extinta em 15/12/1996

07/01/2008

RPI 1956

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

05/21/1991

RPI 1068

Deferimento

#9.1

02/05/1991

RPI 1053

Exigência - art. 36 da LPI

#6.1

10/30/1990

RPI 1039

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